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What is Chain of Rocks, MO, Weather Like in October?

During the month of October, Chain of Rocks, MO, has an average daytime high temperature of 69°F and an average overnight low temperature dropping to 46°F. Around 3.11 inches of precipitation is received during the month, with about 36.24 inches falling in a typical year. As you might expect, snow is not common in the month of October. Annually, Chain of Rocks receives around 11.30 inches of snow.

October 2025: Actual vs. Average Temperatures

Showing temperatures through today (October 22, 2025)
Actual High Average High Actual Low Average Low

Month Summary
Average High: 79.7 F (+9.0 vs avg)
Average Low: 57.2 F (+10.2 vs avg)

This month was significantly warmer than average.

Actual data from: MID_E8100

Chain of Rocks, MO Daily Weather Averages for October

Recorded at St Peters 2 Se (usc00237475), 15.3 miles SE of Chain of Rocks, MO
Day Avg Temps (°F) Precip (in) Snow (in) Degree Days (°F)
Low High Mean Month Year Month Year Heat Cool
10/1 51 F 75 F 63 F 0.10" 33.23" 0.00" 11.30" 4.3 F 2.2 F
10/2 50 F 74 F 62 F 0.21" 33.34" 0.00" 11.30" 4.6 F 2 F
10/3 50 F 74 F 62 F 0.32" 33.45" 0.00" 11.30" 4.9 F 1.9 F
10/4 50 F 74 F 62 F 0.43" 33.56" 0.00" 11.30" 5.2 F 1.8 F
10/5 49 F 73 F 61 F 0.54" 33.67" 0.00" 11.30" 5.5 F 1.7 F
10/6 49 F 73 F 61 F 0.64" 33.77" 0.00" 11.30" 5.8 F 1.6 F
10/7 49 F 72 F 60 F 0.74" 33.87" 0.00" 11.30" 6.1 F 1.5 F
10/8 48 F 72 F 60 F 0.83" 33.96" 0.00" 11.30" 6.4 F 1.4 F
10/9 48 F 72 F 60 F 0.93" 34.06" 0.00" 11.30" 6.7 F 1.3 F
10/10 47 F 71 F 59 F 1.02" 34.15" 0.00" 11.30" 7 F 1.2 F
10/11 47 F 71 F 59 F 1.11" 34.24" 0.00" 11.30" 7.3 F 1.1 F
10/12 47 F 70 F 58 F 1.20" 34.33" 0.00" 11.30" 7.5 F 0.9 F
10/13 46 F 70 F 58 F 1.29" 34.42" 0.00" 11.30" 7.8 F 0.8 F
10/14 46 F 69 F 58 F 1.38" 34.51" 0.00" 11.30" 8.1 F 0.7 F
10/15 46 F 69 F 57 F 1.48" 34.61" 0.00" 11.30" 8.4 F 0.6 F
10/16 45 F 69 F 57 F 1.58" 34.71" 0.00" 11.30" 8.7 F 0.6 F
10/17 45 F 68 F 56 F 1.68" 34.81" 0.00" 11.30" 9.1 F 0.5 F
10/18 44 F 68 F 56 F 1.78" 34.91" 0.00" 11.30" 9.4 F 0.5 F
10/19 44 F 67 F 56 F 1.88" 35.01" 0.00" 11.30" 9.8 F 0.4 F
10/20 44 F 67 F 55 F 1.98" 35.11" 0.00" 11.30" 10.1 F 0.4 F
10/21 43 F 66 F 55 F 2.08" 35.21" 0.00" 11.30" 10.5 F 0.4 F
10/22 43 F 66 F 55 F 2.18" 35.31" 0.00" 11.30" 10.9 F 0.3 F
10/23 43 F 66 F 54 F 2.28" 35.41" 0.00" 11.30" 11.2 F 0.3 F
10/24 42 F 65 F 54 F 2.39" 35.52" 0.00" 11.30" 11.6 F 0.3 F
10/25 42 F 65 F 53 F 2.49" 35.62" 0.00" 11.30" 12 F 0.3 F
10/26 42 F 64 F 53 F 2.59" 35.72" 0.00" 11.30" 12.4 F 0.3 F
10/27 41 F 64 F 53 F 2.69" 35.82" 0.00" 11.30" 12.8 F 0.3 F
10/28 41 F 63 F 52 F 2.80" 35.93" 0.00" 11.30" 13.2 F 0.3 F
10/29 41 F 63 F 52 F 2.90" 36.03" 0.00" 11.30" 13.5 F 0.3 F
10/30 40 F 62 F 51 F 3.01" 36.14" 0.00" 11.30" 13.9 F 0.3 F
10/31 40 F 62 F 51 F 3.11" 36.24" 0.00" 11.30" 14.3 F 0.3 F